Results 31 to 40 of about 91,861 (215)
Positive Wigner functions render classical simulation of quantum computation efficient [PDF]
, 2012 We show that quantum circuits where the initial state and all the following quantum operations can be represented by positive Wigner functions can be classically efficiently simulated.
Eisert, J., Mari, A.
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Metaplectic Wigner distributions
, 2022 Metaplectic Wigner distributions were recently investigated as natural generalizations of the classical Wigner distribution, and provide a wide class of time-frequency representations that exploits the structure of the symplectic group. This work serves as a survey on metaplectic Wigner distributions and their applications to the time-frequency ...
openaire +2 more sources
SAR ground moving target's along-track velocity estimation in the complex image domain via SoWVD
The Journal of Engineering, 2019 A ground moving target is always defocused in the synthetic aperture radar (SAR) image domain due to the along-track velocity. In the image domain, a moving target's complex response along the azimuth direction can be modelled as a linear frequency ...
Zuzhen Huang +3 more
doaj +1 more source
Hydrogen atom in phase space: The Wigner representation [PDF]
, 2005 We have found an effective method of calculating the Wigner function, being a quantum analogue of joint probability distribution of position and momentum, for bound states of nonrelativistic hydrogen atom. The formal similarity between the eigenfunctions
Barut A O +14 more
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Angewandte Chemie, EarlyView.Ultrafast broadband transient absorption spectroscopy and multireference excited‐state nonadiabatic calculations in an open‐shell Fe(III) complex unveil the rich electronic and vibrational dynamics detailing the key reactive modes driving the spin‐crossover process.
Soumyajit Mitra +8 more
wiley +2 more sources
Robust and fast algorithm for extracting the periodic feature from jet engine modulation signals
The Journal of Engineering, 2019 Jet engine modulation (JEM), a modulation phenomenon induced by the rotating structure of jet engines, is a representative feature extracted from the radar returns for aircraft target recognition.
Jingming Sun, Junpeng Yu
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ANALOGY OF THE SECOND ORDER PHASE TRANSITION IN QUASI-OPTICAL MICROWAVE CAVITY RESONATOR [PDF]
Радиофизика и электроника, 2015 In this paper for the first time we have discovered and studied the analogy of the second order phase transition in spheri-cal microwave cavities with heterogeneity in the form of a metal ball. The transition occurs between the state when the ball is sym-
E. M. Ganapolskii
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Spectral analysis of ultrasonic signals backscartted by mortar: Effect of sand size and temperatures
Materials Letters: X, 2022 This paper presents results of application of Ultrasonic Waves UW in civil engineering. The measurement has been performed by ultrasonic reflection technique using a transducer with central frequency 0,5MHz.
Hicham LOTFI +3 more
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Measurement-induced decoherence and Gaussian smoothing of the Wigner distribution function
, 2003 We study the problem of measurement-induced decoherence using the phase-space approach employing the Gaussian-smoothed Wigner distribution function.
Ali +44 more
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Moyal Brackets, Star Products and the Generalised Wigner Function [PDF]
, 1998 The Wigner-Weyl- Moyal approach to Quantum Mechanics is recalled, and similarities to classical probability theory emphasised. The Wigner distribution function is generalised and viewed as a construction of a bosonic object, a target space co-ordinate ...
Baker +21 more
core +2 more sources